Supporting beam for a formwork panel

ABSTRACT

A supporting beam for a formwork panel, which comprises a longitudinally extended profiled element and a removable plate-like element is provided in front of at least one end of the profiled element.

The present invention relates to a supporting beam for a formwork panel.

Until now, in the provision of floor slabs, supporting props are restedon the floor with, at the ends, supporting heads for beams forsupporting formwork panels to be arranged side by side in a coplanarmanner.

In the industry, supporting beams are widespread which comprise alongitudinally extended profiled element with two vertical parallelfaces with respect to the installation position and two transverseportions, one of which is an upper portion designed to support aformwork panel, the other one being a lower portion with slot-likeopenings. A pair of parallel plate-like elements, between which atransverse rod is provided, is fixed with rivets, to the parallel faces.Moreover, a plate-like element is welded in front of the ends.

The supporting heads to be used with such beams can be of the fallinghead type, which are adapted to be removed from below after the concretecasting, or of the fixed type.

According to some falling head solutions, the head comprises two plateswhich are arranged mirror-symmetrically and laterally adjacent toopposite sides of a post which is fixed to the upper end of the prop.The plates have recesses for the resting of the ends of the beams. Asame falling head of this type constitutes the resting element for theends of two contiguous supporting beams, arranged opposite to the post.

The beam end rests on the head by means of the transverse rod to bepositioned so that it rests in the recesses of the plates and by meansof the plate-like element, to be rested laterally to the post installedon the prop.

Two contiguous supporting beams which rest on opposite sides of a samepost face each other with a space between them equal to at least thethickness of the post. The spacing produces an empty space between twocontiguous panels mounted on top of said beams, which typically isfilled by means of a filling element, on top of the post, which isadapted to prevent the falling of concrete during casting.

The fixed supporting heads have a resting part for the beam with upwardprotrusions, which are sometimes contoured and are adapted to beinserted in the slots provided in the lower part of the beam. The fixedsupporting heads can be used for resting a single supporting beam,proximate to the end thereof or in an intermediate region, close to asimilar contiguous beam in order to position contiguous panels which aremutually in contact in an upper region.

The beams of the described type, therefore, are not free from drawbacks,such as the fact that they cannot be mounted with the ends resting onsupporting heads of the fixed type. In this case, in fact, theplate-like elements present at the ends of two contiguous beams wouldprevent their approach, causing a spacing also between the formworkpanels, which in this case cannot be filled by means of a fillingelement, due to the absence of the post.

The aim of the present invention is to provide a supporting beam for aformwork panel that is capable of improving the background art in one ormore of the aspects mentioned above.

Within this aim, an object of the invention is to provide a supportingbeam that can be arranged so that the ends rest on supporting heads ofthe falling type and also of the fixed type, in this last case ensuringthe positioning of contiguous panels mutually in contact so that theconcrete being cast cannot fall between them.

A further object of the present invention is to overcome the drawbacksof the background art in a manner that is alternative to any existingsolutions.

Another object of the invention is to provide a beam that is highlyreliable, relatively easy to provide and at competitive costs.

This aim and these and other objects which will become better apparenthereinafter are achieved by a supporting beam for a formwork panel,comprising a longitudinally extended profiled element and characterizedin that a removable plate-like element is provided in front of at leastone end of said profiled element.

Further characteristics and advantages of the invention will becomebetter apparent from the description of a preferred but not exclusiveembodiment of the supporting beam according to the invention,illustrated by way of non-limiting example in the accompanying drawings,wherein:

FIG. 1 is a perspective view of the beam according to the invention;

FIG. 2 is another perspective and partially exploded view of the beamaccording to the invention;

FIG. 3 is an enlarged-scale view of the beam according to the invention;

FIG. 4 is a view of an application of the beam according to the isinvention;

FIG. 5 is a view of another application of the beam according to theinvention.

With reference to the figures, the beam according to the invention,generally designated by the reference numeral 10, comprises alongitudinally extended profiled element 11 and a removable plate-likeelement 12 is provided in front of at least one end of the profiledelement 11.

The plate-like element 12 is fixed to the rest of the beam 10 preferablyby virtue of fixing means 13, which comprise at least one screw 14 orpreferably two as in the case shown. The screws 14 pass through theplate-like element 12 at adapted through holes 15 provided on saidelement. The mentioned components and elements are rendered clearlyvisible in the enlarged-scale view of FIG. 3 .

The profiled element 11 has a pair of parallel faces 16, which arevertical with respect to the installation position of the beam 10,between which a perforated element 17 is provided, which is integralwith the profiled element 11 and in which the screws 14 can betightened.

The profiled element 11 is substantially formed by the two parallelfaces 16, by a first transverse portion 18 a, designed for the restingof a formwork panel 19 (as shown in FIG. 4 and FIG. 5 ), and by a secondlower transverse portion 18 b with slots (not visible in the figuresshown).

The plate-like element 12 has, on the part for fixing to the perforatedelement 17, a protrusion 20 suitable to enter an adapted correspondingseat 21 of the first transverse portion 18a.

Moreover, by observing FIG. 3 one notices that the beam 10 comprises apair of plate-like elements 22 which are parallel on a vertical plane,with respect to the installation position of said beam 10, and protrudeat the ends of the profiled element 11 from the two parallel faces 16with which they are rendered integral by means of rivets 23 and in a perse known manner.

The two plate-like elements 22 are part of a single element which isbent into an inverted U-shape and is positioned between the two parallelfaces 16 and to which the perforated element 17 is welded.

Between each pair of plate-like and parallel elements 22 there is also atransverse rod 24, designed to rest on recesses provided on thesupporting heads 25 and 26 shown in the following FIGS. 4 and 5 .

In particular, FIG. 5 shows the use of a beam 10 according to theinvention with the use of a supporting head 25 of the falling type,installed on top of a prop 27 with a post 28, fixed to the upper end ofsaid prop 27.

The falling head 25, of a per se known type, comprises a pair of plates29 which are arranged mirror-symmetrically and are laterally adjacent toopposite sides of the post 28. The plates 29 have recesses for theresting of the ends of the beams 10, particularly of the rod 24. A samefalling head 25 allows the end resting of two contiguous beams 10,arranged on opposite sides with respect to the post 28. The installationof the beams 10 on the falling head 25 occurs in a per se known manner:the beams 10 are arranged so that the rods 24 rest in the recesses ofthe plates 29 and so that the plate-like elements 12 rest on oppositesides of the post 28. The presence of the post 28 and of the twoelements 12, at the respective ends of the two beams 10, produces asignificant spacing of the profiled elements 11 of the beams 10 andconsequently the spacing of the overlying panels 19. As shown, the spacebetween the panels 19 is filled with an adapted filling element 30 inorder to prevent the fall of concrete during casting or in any caseuntil curing has occurred.

Advantageously, as shown in FIG. 5 , the plate-like element 12 has beenremoved from the two beams 10 shown, which rest, at their ends, on asupporting head 26 of the fixed type. The head 26, also of a known type,has projections 31 which extend upward from the corners of an imaginarysquare and are shaped so as to form recesses in which the two contiguousbeams 10 rest with the respective rods 24.

In this case, with respect to the preceding one, due to the absence ofthe post and of the two plate-like elements the two beams 10 accordingto the invention are closer to each other, allowing the placementthereon of panels 19 which are contiguous and in mutual contact, so asto prevent the concrete from falling between them during casting.

The use of the beam, according to the invention, is evident from whathas been described and illustrated and in particular it is evident thatthe beam can be used usually with heads of the falling type, maintainingthe fixing of the plate-like element, and also with heads of the fixedtype, simply by removing the plate-like element.

In practice it has been found that the invention achieves the intendedaim and objects, providing a supporting beam for formwork panels thatcan be positioned with the ends resting on supporting heads both of thefalling type and of the fixed type, in this last case also ensuring thepositioning of contiguous panels mutually in contact.

The invention thus conceived is susceptible of numerous modificationsand variations, all of which are within the scope of the appendedclaims; all the details may furthermore be replaced with othertechnically equivalent elements.

In practice, the materials used, so long as they are compatible with thespecific use, as well as the contingent shapes and dimensions, may beany according to the requirements and the state of the art.

The disclosures in Italian Patent Application No. 102020000020776 fromwhich this application claims priority are incorporated herein byreference.

1-7. (canceled)
 8. A supporting beam for a formwork panel, comprising alongitudinally extended profiled element, wherein a removable plate-likeelement is provided in front of at least one end of said profiledelement.
 9. The beam according to claim 8, wherein said plate-likeelement is fixed to a rest of said beam by virtue of fixing means. 10.The beam according to claim 9, wherein said fixing means comprise atleast one screw which passes through said plate-like element at athrough hole, said profiled element having a pair of parallel facesbetween which there is a perforated element, which is rendered integralwith said profiled element and in which said screw can be tightened. 11.The beam according to claim 10, wherein said plate-like element has, ona part for fixing to said perforated element, at least one protrusionadapted to enter a seat of a first transverse portion between said pairof parallel faces of said profiled element.
 12. The beam according toclaim 10, further comprising at least one pair of plate-like elementswhich are parallel on a vertical plane, with respect to an installationposition of said beam, and protrude at ends of said profiled elementfrom said pair of parallel faces with which said plate-like elements areintegral.
 13. The beam according to claim 12, wherein said plate-likeelements are part of a single element which is bent into a U-shape andis positioned between said two parallel faces and to which saidperforated element is welded.
 14. The beam according to claim 12,wherein a transverse rod is provided between each pair of plate-likeelements.